Theboyhasafeverandheneed___morewater.A:drinkB:todrink
请问是选A吗?但为什么选A不选B呢?我怎么知道这里的need是情态动词还是实义动词?
Theboyhasafeverandheneed___morewater.A:drinkB:todrinkC:needn'ttoD:drinking